close(target.quitCh)
	if target.pool != nil {
		return target.pool.Close()
	}
	return nil
}

func (target *RedisTarget) init() error {
	return target.initOnce.Do(target.initRedis)
}

func (target *RedisTarget) initRedis() error {
	conn := target.pool.Get()
	defer conn.Close()

	_, pingErr := conn.Do("PING")
	if pingErr != nil {
		if !xnet.IsConnRefusedErr(pingErr) && !xnet.IsConnResetErr(pingErr) {